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We Didn't Know Any Of These Things 100 Years Ago

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Relative to the amount of time humans have been on Earth, 100 years is just a blip on the radar. Yet plenty of scientific facts that seem like no-brainers today were completely unknown to us a century ago. For example, we didn't know that DNA was in the shape of a double helix until James Watson and Francis Crick introduced the discovery to the masses in 1953. We also didn't know much about the nutrients in foods -- the research done by biochemist Albert Szent-Györgyi in the 1920s led to the discovery of vitamin C. And it wasn't until 1928 that we had antibiotics or penicillin. We have scientist Alexander Fleming to thank for that. We've collected some awesome videos on this topic. Watch them now to learn more.

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